2 * Copyright (c) 2002-2004 Tim J. Robbins. All rights reserved.
4 * The Regents of the University of California. All rights reserved.
6 * This code is derived from software contributed to Berkeley by
7 * Paul Borman at Krystal Technologies.
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
12 * 1. Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
14 * 2. Redistributions in binary form must reproduce the above copyright
15 * notice, this list of conditions and the following disclaimer in the
16 * documentation and/or other materials provided with the distribution.
17 * 4. Neither the name of the University nor the names of its contributors
18 * may be used to endorse or promote products derived from this software
19 * without specific prior written permission.
21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
34 #if defined(LIBC_SCCS) && !defined(lint)
35 static char sccsid[] = "@(#)none.c 8.1 (Berkeley) 6/4/93";
36 #endif /* LIBC_SCCS and not lint */
37 #include <sys/cdefs.h>
38 __FBSDID("$FreeBSD$");
50 static size_t _none_mbrtowc(wchar_t * __restrict, const char * __restrict,
51 size_t, mbstate_t * __restrict);
52 static int _none_mbsinit(const mbstate_t *);
53 static size_t _none_mbsnrtowcs(wchar_t * __restrict dst,
54 const char ** __restrict src, size_t nms, size_t len,
55 mbstate_t * __restrict ps __unused);
56 static size_t _none_wcrtomb(char * __restrict, wchar_t,
57 mbstate_t * __restrict);
58 static size_t _none_wcsnrtombs(char * __restrict, const wchar_t ** __restrict,
59 size_t, size_t, mbstate_t * __restrict);
64 int __mb_sb_limit = 256; /* Expected to be <= _CACHED_RUNES */
67 _none_init(_RuneLocale *rl)
70 __mbrtowc = _none_mbrtowc;
71 __mbsinit = _none_mbsinit;
72 __mbsnrtowcs = _none_mbsnrtowcs;
73 __wcrtomb = _none_wcrtomb;
74 __wcsnrtombs = _none_wcsnrtombs;
75 _CurrentRuneLocale = rl;
82 _none_mbsinit(const mbstate_t *ps __unused)
86 * Encoding is not state dependent - we are always in the
93 _none_mbrtowc(wchar_t * __restrict pwc, const char * __restrict s, size_t n,
94 mbstate_t * __restrict ps __unused)
98 /* Reset to initial shift state (no-op) */
101 /* Incomplete multibyte sequence */
104 *pwc = (unsigned char)*s;
105 return (*s == '\0' ? 0 : 1);
109 _none_wcrtomb(char * __restrict s, wchar_t wc,
110 mbstate_t * __restrict ps __unused)
114 /* Reset to initial shift state (no-op) */
116 if (wc < 0 || wc > UCHAR_MAX) {
120 *s = (unsigned char)wc;
125 _none_mbsnrtowcs(wchar_t * __restrict dst, const char ** __restrict src,
126 size_t nms, size_t len, mbstate_t * __restrict ps __unused)
132 s = memchr(*src, '\0', nms);
133 return (s != NULL ? s - *src : nms);
138 while (len-- > 0 && nms-- > 0) {
139 if ((*dst++ = (unsigned char)*s++) == L'\0') {
150 _none_wcsnrtombs(char * __restrict dst, const wchar_t ** __restrict src,
151 size_t nwc, size_t len, mbstate_t * __restrict ps __unused)
157 for (s = *src; nwc > 0 && *s != L'\0'; s++, nwc--) {
158 if (*s < 0 || *s > UCHAR_MAX) {
168 while (len-- > 0 && nwc-- > 0) {
169 if (*s < 0 || *s > UCHAR_MAX) {
173 if ((*dst++ = *s++) == '\0') {
185 size_t (*__mbrtowc)(wchar_t * __restrict, const char * __restrict, size_t,
186 mbstate_t * __restrict) = _none_mbrtowc;
187 int (*__mbsinit)(const mbstate_t *) = _none_mbsinit;
188 size_t (*__mbsnrtowcs)(wchar_t * __restrict, const char ** __restrict,
189 size_t, size_t, mbstate_t * __restrict) = _none_mbsnrtowcs;
190 size_t (*__wcrtomb)(char * __restrict, wchar_t, mbstate_t * __restrict) =
192 size_t (*__wcsnrtombs)(char * __restrict, const wchar_t ** __restrict,
193 size_t, size_t, mbstate_t * __restrict) = _none_wcsnrtombs;